specs say
MPG CITY: 21MPG
Highway 30-31MPG

You can find this information on autos.msn.com or www.fueleconomy.gov

as for your 20 MPG, Id say if thats all city driving thats not to bad. but if thats your highway, id say something's wrong, lol. IM guessing its your city, so we will leave it at that.

98 Corolla LE 1.8L DOHC 1ZZFE TEIN H.Tech Springs Tokico HP series Struts Short ram air intake Tsudo Axel Back Exhaust ... if a jelly fish stung me.. would you pee on the wound?